United Kingdom Hydrographic Office

Admiralty logo

Providing the most comprehensive global hydrographic and geospatial information available to help make informed decisions.

The United Kingdom Hydrographic Office (UKHO) provides hydrographic and geospatial data to mariners and maritime organisations across the world.

We supply defence and the commercial shipping industry, help ensure Safety of Life at Sea (SOLAS), protect the marine environment and support the efficiency of global trade.

Together with other national hydrographic offices and the International Hydrographic Organization (IHO), we work to set and raise global standards of hydrography, cartography and navigation.

Our market-leading portfolio of ADMIRALTY Maritime Products & Services is found on over 90% of the world’s ships trading internationally. Relied upon by mariners for over 200 years, our portfolio provides the most comprehensive range of SOLAS-compliant charts, publications and digital services to keep crews, cargo and ships safe.

As leaders in our field, our global reputation is based on the reliability of hydrographic and geospatial information, sourced and compiled by experts.

ADMIRALTY Maritime Products & Services portfolio is:

  • the most comprehensive available
  • quality assured and up-to-date
  • trusted – now and in the future
  • produced above all to improve safety at sea
  • most chosen by mariners and shipping companies


United Kingdom Hydrographic Office
Admiralty Way
Taunton TA1 2DN
United Kingdom
Tel: +44 1823 337 900
Email: customerservices@ukho.gov.uk
Web: www.admiralty.co.uk